Tae Kwon Do kicking drills, front kicks, side kicks , back pivot kicks, crescent kicks- inside and outside variants, both at speed with power , and super slow with great form and control, but always focusing on precision of where you want that kick to land.

Planking is good, but a waste of time really IMO. Always try to use a muscle group that is not just muscle strain, but one that builds coordination in your bodys ranges of motion.

Example? Lets say your leg pressing 2 to 2.25 times your own weight for exercise. Your wasting you time when you could be doing pistol squats, building leg stability and the same leg strength as well as balance.

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Home rink: Roll-A-Rama in Huntington Wv.
"Focus on form and speed is a byproduct, focus on speed and falling is a byproduct." - Matguy